Punching bag



Feb. 19, 1929. h r 1,103,012

D. MCNAMARA 17 PUNCHING BAG Filed March 16, 1928 2 Sheets-Sheet 1 1o ,1 i I 11 19 2.3 i

INVENTOR WITNESSES Denis M A/amara I Q p. as ATTORNEY Feb; 19, 1929.

D. M NAMARA PUNCHING BAG Filed March 16, 1928 2 Sheets-Sheet 2 m a m m. T a mw. MM .m 8 B wow 149% ATTORNEY I WITESSES Patented Feb. 19,

UNITED STATES PATENT OFFICE.

Application filed March 16, 1928. Serial No. 262,145.

- This invention relates to punching bags, particularly to an improved rocking punching bag shown in improvement over my Patent Number 1,665,969.

The object of the invention is to provide an improved construction for yieldingly holding a punching bag in a certain position and returning it to that position when removed therefrom and then released.

Another object is to provide a punching bag with a rockable support and associated spring means for yieldingly holding the support in a given position.

A still further object, more specifically, is to provide a punching bag with a rocking sup? port and a compressible spring with suitable connecting members whereby a lateral movement of the upper part of the punching bag will cause a compression of the spring so that as soon as the bag is released it will automatically return to its former position.

In the accompanying drawing- Figure 1 is a perspective view of a complete punching bag disclosing an embodiment of the invention;

Figure 2 is an enlarged detail fragmentary sectional view through Figure l on line 22;

Figure 3 is a fragmentary sectional view through Figure 2 on line 33 Figure 1 is a perspective view of one of the connecting members shown in Figure 2.

Referring to the accompanying drawing by numeral, 1 indicates a bag of any desired kind, as, for instance, the kind disclosed in my Patent No. 1,665,969. It will, however, be understood that other shaped bags and also bags of other construction may be used without departing from the spirit of the invention. The bag 1 is connected in any desired manner to the standard 2 which may be wood, hollow metal or any desired material, and which is secured in place by a suitable bolt 3. The bolt 3 extends through a tubular extension 4 of a rocking member or bore 5 and also through the tube 6, as well as the lower part of standard 2. Tube 6 at the lower end frictionally engages the upper surface of flange 7 of the coupler or connecting member 8. Preferably ball bearings 9 are used between flange 7 and the rocking member or bore 5, whereby free and easy rotary movement may be had between the respective parts. It will be noted that bore 5 is provided with a bore 10 in which the lower part of coupler 8 is rotatably mounted.

' This coupler is preferably provided with a reduced portion 11 having an opening therein for receiving the eye 12 of a link or rod 13. This link or rod extends downwardly and through a guiding disk 14 and an abutment or supporting washer 15. A nut 16 is screwed centrally thereon by member 14, while the opposite end surrounds the tubular extension 18 and rests against the plate 19. Plate 19 is preferably integral with the tubular member 18 and is secured-to'the platform or support 20 by suitable bolts 21. The platform 20 may be of any desired kind, as, for instance, identical with that shown in my co-pending application above referred to. This platform 20 has an annular depending portion 22 provided with a number of projections or feet 23, whereby screws may be-used, if desired, to secure a platform or support to a floor. Ordinarily this is not necessary but may be done, if desired. From Figures 1 and 2 it will be noted that the rocking member 5 forms a perfect ball except the upper extension or tubular portion 4:. By reason of this fact it will normally assume the position shown in Figure 1 with the small part projecting into the .upper part of a bore 24. When any one strikes the bag 1 or otherwise moves the same to one side the parts will assume substantially the dotted position shown in Figure 2. When assuming this position the member 5 will roll on the plate 19 and pull upwardly on rod 13, thus compressing spring 17 As soon as the bag 1 has been released, ball 5 will immediately roll back to the position shown in Figure 1 by reason of the action of spring 1 If the bag has been moved an appreciable distance to one side there may be a slight back and forth or oscillatory movement before the bag comes to rest. As the lower part or rocking member or ball 5 is round, the bag 1 and associated parts may be swung in any direction and spring 17 and associated parts will function in the usual manner. Preferably there is always some strain on the spring 17, so that the parts will never move from the position shown in Figure 1 until positively moved therefrom by someone hitting the bag or otherwise moving the same to one side. By forming the construction in this manner the punching bag as a whole may be moved to any desired place on a floor and may be readily set up wherever desired without mutilating any part of the buildin As indicated in Figure 2, a nut 16 bears against an antitriction thrust bearing 25. This permits .an easier and smoother movement of the parts as the device functions.

What I claim is 1. In a punching bag, a bag structure, a standard extending from said bag structure, a ball-shaped rocking member connected to one end 01 said standard, a support for said rocking member, said support having an aperture therein, a rotatable member carried by said rocking member and extending into said aperture, a link extending from said last-mentioned member, and a spring acting on said link for holding said rocking member against said support while allowing a rocking movement of said rocking member.

2. In a punching bag, a bag structure, a standard extending from said bag structure, a rocking member formed round at the lower end, means for securing said rocking member to said standard, a rotatable coupler carried by said rocking member and extending from one end thereof, a tubular member tor holding said coupler in direct position, a support for said rocking member, said support having an aperture through which part of said coupler extends, and a link connected to said coupler and a spring acting on said support and on said link for resiliently holding the link, coupler and rocking member in a given position, whereby when the rocking member has been rocked to one side the link will be pulled against the action of said spring, and when the rocking member has been relased said spring will act to pull the rocking member back to its first position.

3. In a punching bag, a bag structure, a standard carried by said bag structure, a rocking member connected to one end of said standard, said rocking member having a ballshaped lower end and a tubular portion, said standard being secured to said tubular portion, said ball-shaped lower end having a restricted bore, a coupler having a flange and an eye member, said flange being rotatably mounted in said tubular member while the remaining part of the coupler member extends through said bore with the eye projecting therebeyond, means for holding the said coupler in correct position in said rocking member, a support for said rocking member having an opening into which said eye extends while the rocking member extends on the outer surface of said support, and spring means acting on said eye and associated parts for resiliently holding the rocking member and associated parts in a given position.

4. In a punching bag, a standard, a rocking member connected with said standard, a coupler carried by said rocking member and extending therefrom, said coupler rotating in a plane normal to said standard, a supporting plate having an opening therein, said opening accommodating part of said coupler while the rocking member rests on the plate, a link pivotally connected with that part oi the coupler extending into said opening, and resilient means acting on said plate and on one end of said link for resiliently holding said rocking member in a given position while permitting movement from said position.

Signed at New York in the county of New York and State or New York, this 13th day of March A. D. 1928.

DENIS MONAMARA. 

